Answer:
-a will be greater than -b because for example, when a=2 and b=5, -a=-2 and -b=-5
Answer:
98
Step-by-step explanation:
u + xy
u = 18
x = 10
y =8
18 + 10*8 = 18 +80
= 98
Answer:
Step-by-step explanation:
The equation of a straight line can be represented in the slope intercept form as
y = mx + c
Where
m = slope = (change in the value of y in the y axis) / (change in the value of x in the x axis)
The equation of the given line is
y = 7x - 5
Comparing with the slope intercept form, slope = 7
If two lines are parallel, it means that they have the same slope. Therefore, the slope of the line passing through (2, 1) is 7
To determine the intercept, we would substitute m = 7, x = 2 and
y = 1 into y = mx + c. It becomes
1 = 7 × 2 + c = 14 + c
c = 1 - 14
c = - 13
The equation becomes
y = 7x - 13
If the two lines are perpendicular, it means that the slope of one line is the negative reciprocal of the slope of the other line.
Therefore, the slope of the line passing through (2, 1) is - 1/7
To determine the intercept, we would substitute m = - 1/7, x = 2 and
y = 1 into y = mx + c. It becomes
1 = - 1/7 × 2 + c = - 2/7 + c
c = 1 + 2/7
c = 9/7
The equation becomes
y = - x/7 + 9/7
X-3y- -4 would be equivalent
This isn't an answer, rather a suggestion.
I would use the website desmos to help you out. But it won't help you forever like when you do quizzes or tests.
Directions:
Make the variable "y" all by itself. It need to be solo. For example for problem 34, negate 3 on each side and you will have "y=1/2(x+2)+3".
From there, plug in numbers into the x variable. (I suggest using common factors of "2" since the number your multiplying is 1/2.
Again using 34,
y=1/2(x+2)+3
y=1/2(2+2)+3
y=1/2(2+2)+3
y=1/2(4)+3
y=2+3
y=5
The coordinates are (2,5). Plot the coordinate.
Repeat the process.
